| Model | KeyPNP |
|---|---|
| Type | Keying circuit |
| Brand | nomadradio.com |
Check the listing for details. Linear amplifier keying circuit. Condition: Open box. Listed at 28.00 USD. It's a keying circuit, folks. It's built to work with a negative-ground powered DC relay. The 4.7k 2-Watt resistor supplied with this board is installed between the solder pad marked "In" and the center pin of the amplifier's input or "Radio" socket.
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